So I don't mean like Odin was literally a shape shifting god who could control ravens, but maybe he used to be an ancient pre-historic king whose story has been dramatized, embellished, & mixed with other pseudo historic sources over the millennia? In a way that we are generally in agreement many modern religions are. Is it possible that Ragnarok is really the story of the fall of a pre-historic kingdom & it's fall? That in a newly agrarian society the end of any Kingdom would have felt like the end of the world for those who lived within it.

And I ask this because, it just strikes as a totally plausible story when you pull out the super natural. Stuff that must have seemed super natural 5000 years ago would be considered totally banal today but would be described as the works of the gods in the first agrarian societies.